BuildingTcl -- addMaterial: MaterialmodelLabel TrilinearHysteretic

Commands

addMaterialData MaterialLabel $MaterialLabel

addMaterialData MaterialModelLabel TrilinearHysteretic

addMaterialData eps1 $eps1

addMaterialData f1 $f1

addMaterialData eps2 $eps2

addMaterialData f2 $f2

addMaterialData eps3 $eps3

addMaterialData f3 $f3

<addMaterialData MaterialDescription $MaterialDescription >

<addMaterialData pinchX $pinchX>

<addMaterialData pinchY $pinchY>

<addMaterialData damage1 $damage1>

<addMaterialData damage2 $damage2>

<addMaterialData beta $beta>

<addMaterialData WeightDensity $WeightDensity>

addMaterial

Arguments

$MaterialLabel 

Unique Material Label for reference

$eps1 

strain/deformation at first point in curve

$f1 

stress/force at first point in curve

$eps2 

strain/deformation at second point in curve

$f2 

stress/force at first second in curve

$eps3 

strain/deformation at third point in curve

$f3 

stress/force at first third in curve

$MaterialDescription 

Text. Optional, default = blank {}

$pinchX 

Pinching factor for strain (or deformation) during reloading. Optional, default = 1.

$pinchY 

Pinching factor for stress (or force) during reloading. Optional, default = 1.

$damage1 

Damage due to ductility: D1(mu-1). Optional, default = 0.

$damage2 

Damage due to energy: D2(Eii/Eult). Optional, default = 0.

$beta 

Power used to determine the degraded unloading stiffness based on ductility, mu^(-beta). Optional, default = 0.5

$WeightDensity 

Volumetric Weight Density of Material. Used to calculated section WeightDensity: sectionWeightDensity=$materialWeightDensity*SectionArea. Optional, default = 0.

NOT IMPLEMENTED IN CURRENT VERSION

Notes

The addMaterial command must be placed at the end of each Material-data definition, as it takes all data defined since the last addMaterial command and define the Material.

OpenSees Object

This MaterialModel is based on the OpenSees Hysteretic Material

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BuildingTcl -- addMaterial

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